Proton Partners International today announced that it has strengthened its senior executive team with two key appointments. The company has appointed Lis Neil as chief operating officer, formerly operations director of diagnostic and specialist services at Nuffield Health, and Dr Ian Barwick as chief scientific officer, formerly chief operating officer at the Life Sciences Hub Wales. With 25 years of senior healthcare experience, Lis Neil will be responsible for daily operations, such as commissioning new facilities and ensuring the quality,…